25 year old Roberto Garnica has pleaded not guilty to the charges, which could lead to eight years in prison

Criminal charges have been filed against a San Diego man who allegedly bit off a fan’s finger tip at a recent Jay Z and Beyoncé concert at Los Angeles’ Rose Bowl Stadium on Saturday (August 2). Roberto Garnica has been charged with ‘mayhem’ and battery with serious bodily injury.

Garnica, 25, has pleaded not guilty to the charges. If he is found guilty, he could face up to eight years in prison, reports Billboard.

Los Angeles County prosecutors say Garnica groped a woman at the stadium and when the woman’s boyfriend confronted Garnica, there was a physical altercation during which Garnica allegedly bit off the end of the other man’s finger. The boyfriend, said to be in his 20s, was taken to hospital.

The incident occurred during the first of two nights of Beyoncé and Jay Z’s On The Run tour at the Pasadena stadium.